Power-transmission belt.



L. ONDBRDONK. POWER TRANSMISSION BELT.

APPLICATION FILED JUNE 8 190 Patented June '1, 1909.

WITNESSES I INVENTOR UNITED STATES PATENT OFFIQE,

LANSING ONDERDONK, OF NEW YORK, Y., ASSIGNOR TO UNION SPECIAL MACHINE COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS.

POWER-TRANSIVIISSION BELT.

To all whom it may concern:

Be it known that I, LANSING ONDERDONK, a citizen of the United States, residing at New York, in the county of New York, State of New York, have invented certain new and useful Improvements in Power-Transmission Belts, of which the following is a description, reference being had to the accompanying drawing, and to the figures of reference marked thereon.

My invention relates to new and useful improvements in belts for the transmission of power, and has for its object to provide a novel construction of belt, which shall be self-lubricating, and so constructed as to run evenly upon the driving and driven pulleys without creeping laterally thereof and running off.

To this end, the invention consists primarily of a belt, composed of a core of fibrous or other absorbent material, wound with small wires or small strands of any durable non-absorbent material, whereby lubricating material may be carried in the core, and in operation will keep the wires or strands surrounding it lubricated.

Secondly, the invention consists of a belt composed of a plurality of members, each composed of a fibrous lubricating core, surrounded by strands of wire.

Thirdly, it includes a plurality of wire cables, each cable having a fibrous absorbent core, the strands of the cables being wound in opposite directions.

Finally, the invention consists in the matters hereinafter described and referred to in the appended claims.

The invention is illustrated in the accompanying drawings, in which Figure 1 is a perspective view of a complete belt made according to my invention; Fig. 2 is a plan view; Fig. 3 is a sectional view of one of the members or cables of which the belt is composed; Fig. 4 is a detail r perspective view of one of the cleats detached; and Fig. 5 is a sectional view of a pulley showing a section of belt cooperating therewith.

So far as the general construction of the belt is concerned, and starting as a basis with the wire cables, the construction is the same as set forth in my application Serial No. 355,394, filed February 2d, 1907, but the internal construction of the belt itself or the cables, is not disclosed in said application,

Specification of Letters Patent.

Application filed June 8, 1907.

Patented June 1, 1909.

Serial No. 377,909.

although having been embodied in the belt illustrated therein.

In the embodiment of my invention, preferably are used two cables 1 and 2, each composed of a plurality of strands of wire twisted around a core of cotton corf6 or other material of fibrous nature, capa l i'e of absorbing and giving out lubricatingmaterial. Said two cables are preferably placed side by side, and are then led around in coils side by side extending in opposite directions from the center of the belt until a belt of sufficient width is formed. The cables are secured together by suitably spaced cleats 8, which extend across the entire face of the belt, and are bent upwardly and then downwardly upon the outer face of the belt. Each cleat, as shown in the drawing, is provided with the flattened surface 4, so that said cleats may be pressed down moderately snug upon the strands of the belt and indented slightly but so as not to cut the wires. The cleats when thus positioned are then held in place by solder or other suitable means, preferably by a drop or so of hard solder.

The pulleys with which the belts coo erate are provided with grooves 55, w ich are spaced the same'distance as the cleats upon the belt, and receive said cleats as the pulleys rotate. 4

By making the belts of two cables which are wound from the centbr out, I secure a belt which will run strai ht, and is devoid of the natural tendency t curl or twist, and by using cables the strands of which are wound in opposite directions, I overcome the tendency of the belt to creep laterally upon the pulleys, the tendency of the wire cables to move laterally counteracting each other.

By providing the belt or each member of which it is composed, with a fiber core which will hold lubricant, the belt will be made more flexible and durable than otherwise, and crystallization and kinking would be prevented, and friction between the plies of wire be reduced to a minimum.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent, is

1. A belt for the transmission of power composed of a plurality of cables, certain of said cables having the strands thereof wound in op osite directions, whereby the tendency of t e belt to creep laterally on the pulleys, due to the windings of the cables, is eral creeping of the belt upon the pulleys, and cleats for holding said strands together, i said cleats having their inner faces flattened.

prevented.

2. A belt for the transmission of power composed of a plurality of wire cables, the outer strands of said cables being wound in opposite directions whereby the tendency of the belt to creep laterally on the pulleys due tothe windings of the cable, is prevented.

3. A belt for the transmission of power, composed of two Wire cables having ends in the center of the belt, said. cables extending of said cables being vound in opposite directions. m.

4. A belt foe-2119 transmission of power, composed oftQTo cables having their free ends in the center of the belt, said cables extending outwardly in opposite directions in a series of coils side by side, the strands of said cables being wound in opposite directions, and a series of cleats disposed equidistant on and encircling said coils transversely, whereby the same are held together.

5. A belt for the transmission of power, composed of two cables wound in opposite directions, and so disposed as to prevent latl i l l l 6. A belt for the transmission of power, composed of a plurality of wire cables, each having a fiber core, the strands of the cables being wound in opposite directions; substantially as described.

7. A belt for the transmission of power f composed of a plurality of wire cables, each 1 having a fibrous core, a plurality outwardly in opposite directions in a series of coils side by side, the strands of certain l of cleats arranged to hold the cables in place and having the free ends of the cables starting 4 and ending in a space between two of the cleats.

8. A belt for the transmission oi power composed of a plurality of wire cables, each having a fibrous core, the strands of said cables being wound in opposite directions, and cleats encircling said coils transversely, for holding the same together.

In testimony whereof I allix my sign aturc, in presence of two witnesses.

LANSING ON DEHDONK. lVitnesses:

REUBEN B. TiroMPsoN, JOHN A. CARLSON. 

